阅读说明：本技术 一种适用于沙尘地区的覆膜式太阳能光伏板 (Laminating type solar photovoltaic panel suitable for sand-dust area ) 是由 汪化锋 于 2021-08-02 设计创作，主要内容包括：本发明公开了一种适用于沙尘地区的覆膜式太阳能光伏板,属于太阳能光伏板领域,通过在光伏板本体外侧覆盖具有高透光率的EVA膜套,并将EVA膜套引入一对清洁棉之间,通过EVA膜套将光伏板本体与沙尘有效隔开,为沙尘提供附着载体,使沙尘不易对光伏板本体表面造成污染,与此同时,膨胀柱吸收光照进行热膨胀-自移动过程,推动EVA膜套转动进行上下位置更换,实现自动将覆盖在光伏板本体上侧已被尘土污染的EVA膜套进行更换并同步清洁,当失去阳光照射,膨胀柱冷缩后移回初始位置,实现再次进行光照受热引发对EVA膜套的位置调换和清洁,从而为多沙尘地区提供一种防沙尘且可自动清洁的太阳能光伏板。(The invention discloses a film-coated solar photovoltaic panel suitable for sand areas, which belongs to the field of solar photovoltaic panels, by covering the outside of the photovoltaic panel body with an EVA film sleeve with high light transmittance and introducing the EVA film sleeve between a pair of cleaning cotton, the photovoltaic panel body is effectively separated from the sand through the EVA film sleeve, and an adhesion carrier is provided for the sand, so that the sand is not easy to pollute the surface of the photovoltaic panel body, meanwhile, the expansion column absorbs light to carry out the thermal expansion-self-moving process, pushes the EVA film sleeve to rotate to carry out the up-and-down position replacement, realizes the automatic replacement and synchronous cleaning of the EVA film sleeve which is covered on the upper side of the photovoltaic panel body and is polluted by dust, when the sunlight irradiation is lost, the expansion column moves back to the initial position after being shrunk, the situation that the position of the EVA film sleeve is exchanged and cleaned due to the fact that the EVA film sleeve is heated by the irradiation is achieved again, and therefore the sand-proof and automatic-cleaning solar photovoltaic panel is provided for the sand-dust-rich area.)

1. The utility model provides a tectorial membrane formula solar photovoltaic board suitable for sand and dust area, includes photovoltaic board body (1), its characterized in that: the lower side of the photovoltaic panel body (1) is provided with a backing plate (2), the photovoltaic panel body (1) is fixedly connected to the upper end of the backing plate (2), the upper end of the backing plate (2) is provided with a pair of chutes (201), the chutes (201) are respectively positioned at two sides of the photovoltaic panel body (1), the backing plate (2) is further provided with a narrow channel (202), the narrow channel (202) is positioned between the pair of chutes (201), the chutes (201) are communicated with the narrow channel (202), the outer side of the photovoltaic panel body (1) is sleeved with an EVA film sleeve (4), the upper part of the EVA film sleeve (4) covers the upper side of the photovoltaic panel body (1), the lower part of the EVA film sleeve (4) is slidably connected to the inside of the narrow channel (202), the two ends of the EVA film sleeve (4) extend out of the narrow channel (202) and are respectively positioned in the pair of chutes (201), the upper and lower inner walls of the narrow channel (202) are fixedly connected with cleaning cotton (3), the inner wall fixedly connected with of chute (201) is a pair of baffle (6) that are axisymmetric, baffle (6) are located the downside of EVA membrane cover (4), the inside sliding connection of chute (201) has expansion post (5), expansion post (5) are located the downside of baffle (6).

2. The laminated solar photovoltaic panel suitable for the sandy dust area as claimed in claim 1, wherein: the depth of the chute (201) is gradually reduced along the downward inclined direction, a baffle plate (8) is fixedly connected to the inner bottom surface of the chute (201), and the baffle plate (8) is located on the shallower side of the chute (201).

3. The laminated solar photovoltaic panel suitable for the sandy dust area as claimed in claim 1, wherein: the inside of chute (201) is equipped with a pair of even post (7), even post (7) are located the upside of baffle (6), the both ends of even post (7) respectively with a pair of inner wall fixed connection of chute (201).

4. The laminated solar photovoltaic panel suitable for the sandy dust area as claimed in claim 2, wherein: EVA membrane cover (4) are including stick membrane (41), the fixed surface of stick membrane (41) is connected with two sets of atress festival boards (42), and every atress festival board (42) of group evenly is equipped with a plurality ofly, and is two sets of atress festival board (42) are corresponding with a pair of chute (201) respectively.

5. The laminated solar photovoltaic panel suitable for the sandy dust area as claimed in claim 4, wherein: the vertical distance between a pair of the partition boards (6) is smaller than the width of the stress joint board (42), and the vertical distance from the barrier board (8) to the inner bottom surface of the narrow channel (202) is larger than the length of the stress joint board (42).

6. The laminated solar photovoltaic panel suitable for the sandy dust area as claimed in claim 1, wherein: the expansion column (5) comprises a heat-conducting inner rod (51), an expansion layer (52) is fixedly connected to the outer end of the heat-conducting inner rod (51), and the expansion layer (52) is made of a thermal expansion material.

7. The laminated solar photovoltaic panel suitable for the sandy dust area as claimed in claim 6, wherein: the heat-conducting inner rod (51) is made of heat-conducting materials, the surface of the heat-conducting inner rod is black, and the length of the expansion layer (52) is larger than the vertical distance between the pair of partition plates (6).

8. The laminated solar photovoltaic panel suitable for the sandy dust area as claimed in claim 6, wherein: the outer side of the expansion layer (52) is provided with a plurality of smooth rods (54) which are uniformly distributed, and an elastic net (53) is fixedly connected between every two adjacent smooth rods (54).

9. The laminated solar photovoltaic panel suitable for the sandy dust area as claimed in claim 4, wherein: the bar membrane (41) comprises a plurality of thin film bodies (4101) and a plurality of thin rods (4102), the thin film bodies (4101) and the thin rods (4102) are uniformly distributed at intervals and are fixedly connected with each other, a plurality of stress joint plates (42) correspond to the thin rods (4102) one by one, and the stress joint plates (42) are fixedly connected with the outer ends of the thin film bodies (4101) and the thin rods (4102).

10. The laminated solar photovoltaic panel suitable for the sandy dust area as claimed in claim 2, wherein: one end of the partition plate (6) is provided with a diagonal plane (601), and the diagonal plane (601) is positioned on one side close to the baffle plate (8).

Technical Field

The invention relates to the field of solar photovoltaic panels, in particular to a film-coated solar photovoltaic panel suitable for sand-dust areas.

Background

Conventional energy sources are very limited, both from the world and from china. Solar energy is an inexhaustible renewable energy source, has the advantages of sufficient cleanness, absolute safety, relative universality, reliable long service life, maintenance-free property, resource sufficiency, potential economy and the like, and has an important position in a long-term energy strategy.

The solar photovoltaic panel is a power generation device which can generate direct current when exposed to the sun. The solar cell comprises toughened glass, an EVA (ethylene vinyl acetate) adhesive film, a cell, an EVA adhesive film and a back plate in sequence from top to bottom, wherein the EVA adhesive film is used for bonding and fixing the toughened glass, the cell, the back plate and the cell.

In the north, a large area of photovoltaic panels has also been laid, but in the north, the areas are mostly sand-dust and strong wind, the photovoltaic panels are very easy to adsorb a large amount of sand dust, and the sand dust greatly hinders the absorption of the photovoltaic panels to light, thereby reducing the energy conversion efficiency of the photovoltaic panels.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a film-coated solar photovoltaic panel suitable for a sand-dust area, wherein an EVA film sleeve is used for providing an attachment carrier for sand dust, so that a photovoltaic panel body is effectively separated from the sand dust, meanwhile, an expansion column absorbs solar illumination to carry out a self-moving process, the EVA film sleeve which is covered on the upper side of the photovoltaic panel body and is polluted by the dust is automatically replaced and synchronously cleaned, and the dust-proof effect is realized while the light energy conversion is not easily influenced.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A laminating type solar photovoltaic panel suitable for a sand and dust area comprises a photovoltaic panel body, wherein a base plate is arranged on the lower side of the photovoltaic panel body, the photovoltaic panel body is fixedly connected to the upper end of the base plate, a pair of chutes are formed in the upper end of the base plate and are respectively located on two sides of the photovoltaic panel body, narrow channels are further formed in the base plate and are located between the pair of chutes, the chutes are communicated with the narrow channels, an EVA film sleeve is sleeved on the outer side of the photovoltaic panel body, the upper portion of the EVA film sleeve covers the upper side of the photovoltaic panel body, the lower portion of the EVA film sleeve is connected to the inside of the narrow channels in a sliding mode, two ends of the EVA film sleeve extend out of the narrow channels and are respectively located inside the pair of chutes, cleaning cotton is fixedly connected to the upper inner wall and the lower inner wall of the narrow channels, a pair of axially symmetric partition boards is fixedly connected to the inner walls of the chutes, and the partition boards are located on the lower side of the EVA film sleeve, the inside sliding connection of chute has the expansion post, the expansion post is located the downside of baffle.

Furthermore, the depth of the chute is gradually reduced along the downward direction, a baffle plate is fixedly connected to the inner bottom surface of the chute, and the baffle plate is located on the shallower side of the chute.

Furthermore, the inside of chute is equipped with a pair of even post, even the post is located the upside of baffle, even the both ends of post respectively with a pair of inner wall fixed connection of chute.

Further, the EVA membrane cover includes the stick membrane, the surface fixed connection of stick membrane has two sets of atress festival boards, and every group atress festival board evenly is equipped with a plurality ofly, two sets of atress festival board is corresponding with a pair of chute respectively.

Furthermore, the vertical distance between the pair of partition plates is smaller than the width of the stress joint plate, and the vertical distance from the barrier plate to the inner bottom surface of the narrow channel is larger than the length of the stress joint plate.

Furthermore, the expansion column comprises a heat-conducting inner rod, the outer end of the heat-conducting inner rod is fixedly connected with an expansion layer, and the expansion layer is made of a thermal expansion material.

Furthermore, the heat conduction inner rod is made of heat conduction materials, the surface of the heat conduction inner rod is black, and the length of the expansion layer is larger than the vertical distance between the pair of partition plates.

Furthermore, a plurality of smooth rods which are uniformly distributed are arranged on the outer side of the expansion layer, and an elastic net is fixedly connected between every two adjacent smooth rods.

Further, the stick membrane includes a plurality of film bodies and a plurality of slim stick, the film body is the interval evenly distributed with the slim stick, and the two mutual fixed connection, and is a plurality of atress festival board and a plurality of slim stick one-to-one, and atress festival board fixed connection is in the outer end of film body and slim stick.

Furthermore, one end of the partition plate is provided with a diagonal plane, and the diagonal plane is positioned on one side close to the baffle plate.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme provides the attached carrier for the sand and dust through the EVA membrane cover, separates the photovoltaic board body with the sand and dust is effective, meanwhile, the inflation post absorbs sun illumination and carries out the self-moving process, realizes that the EVA membrane cover that will cover at photovoltaic board body upside has been polluted by dust automatically changes and clean in step, is difficult for causing the influence to the light energy conversion when realizing dustproof effect.

(2) When the EVA film sleeve is moved in the narrow way, the EVA film sleeve can clean cotton contact friction, make clean cotton play clean effect to the EVA film sleeve, effectively reduce EVA film sleeve surface-attached sand and dust, make the EVA film sleeve resume certain cleanliness factor, effectively resume the luminousness of EVA film sleeve promptly, so that rotate once more to photovoltaic board body upside, play the effect of sand prevention dirt to the photovoltaic board body, clean cotton has the function of absorbing water, clean ability is stronger in rainy day.

(3) The rod membrane can absorb solar illumination heat to a great extent to rapid heating up, and then make the inflation layer carry out the thermal energy, under the size restriction of chute, the inflation layer moves along the chute slant to the top, produces the driving force to the atress festival board, drives the rod membrane and carries out the rotation along photovoltaic board body and narrow way, realizes the automatically cleaning of EVA membrane cover.

(4) When the sunlight irradiation is lost, the expansion column moves back to the initial position after being shrunk, the situation that the position of the EVA film sleeve is exchanged and cleaned due to the fact that the EVA film sleeve is heated by the irradiation is achieved again, and therefore the sand-proof and automatic-cleaning solar photovoltaic panel is provided for the sand-dust-rich area.

Drawings

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a perspective view of the photovoltaic panel body and caul sheet of the present invention prior to installation;

FIG. 3 is a perspective view of the photovoltaic panel body and caul sheet of the present invention after installation;

FIG. 4 is a schematic view of the structure at A in FIG. 3;

FIG. 5 is a second perspective view of the present invention;

FIG. 6 is a schematic view of the structure of FIG. 5 at B;

FIG. 7 is a schematic side view of the present invention;

FIG. 8 is a schematic side view of the expansion column of the present invention as it moves under heat;

FIG. 9 is a perspective view of an expansion column of the present invention;

FIG. 10 is a cross-sectional view of an expansion column of the present invention;

FIG. 11 is a partial cross-sectional view of an EVA film sleeve of the present invention;

fig. 12 is a perspective view of a pair of separators of the present invention.

The reference numbers in the figures illustrate:

the photovoltaic panel comprises a photovoltaic panel body 1, a backing plate 2, a 201 inclined groove, a 202 narrow channel, 3 cleaning cotton, a 4EVA (ethylene vinyl acetate) film sleeve, a 41 bar film, a 4101 film body, a 4102 thin bar, a 42 stressed joint plate, a 5 expansion column, a 51 heat-conducting inner bar, a 52 expansion layer, a 53 elastic net, a 54 smooth bar, a 6 partition plate, a 601 oblique plane, a 7 connecting column and an 8 baffle plate.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1 and 2, a film-coated solar photovoltaic panel suitable for a sand-dust area includes a photovoltaic panel body 1, a backing plate 2 is disposed on a lower side of the photovoltaic panel body 1, the photovoltaic panel body 1 is fixedly connected to an upper end of the backing plate 2, a pair of chutes 201 are disposed on an upper end of the backing plate 2, the pair of chutes 201 are respectively located on two sides of the photovoltaic panel body 1, referring to fig. 3 and 4, a narrow channel 202 is further disposed on the backing plate 2, the narrow channel 202 is located between the pair of chutes 201, and the chutes 201 are communicated with the narrow channel 202.

Referring to fig. 5 and fig. 6, the outer side of the photovoltaic panel body 1 is sleeved with the EVA film sleeve 4, the upper portion of the EVA film sleeve 4 covers the upper side of the photovoltaic panel body 1, the lower portion of the EVA film sleeve 4 is slidably connected to the inside of the narrow passage 202, and both ends of the EVA film sleeve 4 extend out of the narrow channel 202 and are respectively positioned inside the pair of inclined slots 201, the upper inner wall and the lower inner wall of the narrow channel 202 are fixedly connected with cleaning cotton 3, when the EVA film sleeve 4 moves in the narrow passage 202, the EVA film sleeve 4 can contact and rub the cleaning cotton 3, so that the cleaning cotton 3 can clean the EVA film sleeve 4, effectively reduce the dust attached to the surface of the EVA film sleeve 4, recover the EVA film sleeve 4 to a certain cleanliness, namely, the light transmittance of the EVA film sleeve 4 is effectively recovered so as to be convenient to rotate to the upper side of the photovoltaic panel body 1 again, play the effect of dust prevention to photovoltaic board body 1, clean cotton 3 has the function of absorbing water, and is cleaner ability stronger in rainy day.

Referring to fig. 6 and 7, a pair of axisymmetric partition boards 6 is fixedly connected to an inner wall of the chute 201, the partition boards 6 are located at a lower side of the EVA film jacket 4, the expansion column 5 is slidably connected to an inside of the chute 201, the expansion column 5 is located at a lower side of the partition boards 6, a depth of the chute 201 is gradually reduced along an obliquely downward direction, the partition boards 6 are made of transparent materials and have a large light transmittance, so that sunlight is irradiated on the expansion column 5, the expansion column 5 is heated by the illumination, a baffle plate 8 is fixedly connected to an inner bottom surface of the chute 201, the baffle plate 8 is located at a shallow side of the chute 201, the baffle plate 8 has a limiting and blocking effect on the expansion column 5, so that the expansion column 5 is not easy to slip out of the chute 201, and a certain inclination angle is formed between the photovoltaic panel body 1 and the ground when the photovoltaic panel body is installed on the spot, therefore, the installation is performed in a manner that the shallow side of the chute 201 faces downward and the deep side of the chute 201 faces upward, supplementary explanation: before the present invention is used, the expansion column 5 is not arranged in the chute 201, and after the present invention is installed on site, the expansion column 5 is put in along the opening at the upper end of the chute 201, so that the expansion column 5 is not easy to fall and lose in the transportation process.

Referring to fig. 6 and 7, a pair of connecting columns 7 is arranged inside the chute 201, the connecting columns 7 are located on the upper side of the partition board 6, two ends of the connecting columns 7 are fixedly connected with a pair of inner walls of the chute 201 respectively, the connecting columns 7 play a role in further guiding the EVA film sleeve 4 on one hand and play a role in connecting the whole structure of the backing plate 2 on the other hand, so that the backing plate 2 is not prone to be split due to the arrangement of the chute 201 and the narrow channel 202.

Referring to fig. 5, the EVA film sleeve 4 includes a bar film 41, two sets of force-bearing plates 42 are fixedly connected to the outer surface of the bar film 41, and each group of stress joint plates 42 is uniformly provided with a plurality of stress joint plates 42, the two groups of stress joint plates 42 respectively correspond to the pair of inclined grooves 201, the vertical distance between the pair of partition plates 6 is less than the width of the stress joint plates 42, the vertical distance from the baffle plate 8 to the inner bottom surface of the narrow channel 202 is more than the length of the stress joint plates 42, when the bar film 41 is rotated along the narrow passage 202 and outside the photovoltaic panel body 1, the force-receiving link 42 moves in the inclined groove 201, and enters between a pair of clapboards 6, and the lower end surface of the stress joint plate 42 is lower than the lower end surface of the clapboard 6, so that the expansion column 5 can conveniently push the stress joint plate 42, please refer to fig. 12, one end of the clapboard 6 is provided with a chamfer 601, the chamfer 601 is positioned at one side close to the baffle 8, the force-receiving webs 42 are advantageously guided into the gap between the pair of separating webs 6 by means of the chamfer 601.

Referring to fig. 9 and 10, the expansion column 5 includes a heat-conducting inner rod 51, an expansion layer 52 is fixedly connected to an outer end of the heat-conducting inner rod 51, the expansion layer 52 is made of a thermal expansion material, the heat-conducting inner rod 51 is made of a heat-conducting material, and the surface of the heat-conducting inner rod is black, the rod film 41 can absorb solar heat to a large extent and rapidly raise the temperature, so as to cause thermal expansion of the expansion layer 52, the maximum expansion diameter of the expansion layer 52 is smaller than the maximum vertical distance between the partition plates 6 and the inner bottom surface of the chute 201, so that the expansion column 5 is not easy to move out from the chute 201 at the inclined upper end due to expansion, the length of the expansion layer 52 is larger than the vertical distance between the pair of partition plates 6, so that the expansion layer 52 is not easy to be clamped between the pair of partition plates 6 when expanding, and is not easy to hinder the expansion movement of the expansion column 5.

Referring to fig. 9 and 10, a plurality of smooth rods 54 are uniformly distributed on the outer side of the expansion layer 52, an elastic net 53 is fixedly connected between adjacent smooth rods 54, the elastic net 53 has an elastic deformation function, can adapt to the thermal expansion and contraction process of the expansion layer 52, is tightly wrapped on the outer side of the expansion layer 52, and plays a role in connecting and limiting the smooth rods 54, when the expansion layer 52 expands and moves along the chute 201, and when the smooth rods 54 contact the inner wall of the chute 201 and the partition board 6, the frictional resistance between the chute 201 and the partition board 6 and the expansion column 5 can be greatly reduced, so that the expansion column 5 can move more smoothly, and is not easy to be extruded between the inner walls of the chutes 201 at unequal distances due to the frictional resistance.

Referring to fig. 11, the bar film 41 includes a plurality of thin film bodies 4101 and a plurality of thin rods 4102, the thin film bodies 4101 and the thin rods 4102 are uniformly distributed at intervals and fixedly connected to each other, the plurality of force receiving node plates 42 are in one-to-one correspondence with the plurality of thin rods 4102, and the force receiving node plates 42 are fixedly connected to the outer ends of the thin film bodies 4101 and the thin rods 4102, so that the stability between the bar film 41 and the force receiving node plates 42 can be improved by the thin rods 4102, when the force receiving node plates 42 are pushed by the expansion columns 5, the bar film 41 is not easily driven to be twisted to change the force receiving direction, and the movement of the whole bar film 41 is conveniently realized.

In a sandy dust area, the EVA film sleeve 4 covers the upper side of the photovoltaic panel body 1 under the condition that the illumination of the photovoltaic panel body 1 is not obviously affected, so that the photovoltaic panel body 1 is effectively separated from the external sand and dust, an attachment carrier is provided for the sand and dust, the surface of the photovoltaic panel body 1 can keep a certain cleanliness, the external sand and dust is attached to the upper end of the EVA film sleeve 4 along with wind power, meanwhile, sunlight penetrates through the EVA film sleeve 4 and the partition board 6 to irradiate on the expansion column 5, the heat-conducting inner rod 51 absorbs the illumination and gradually heats up to promote the expansion layer 52 to generate thermal expansion, under the size limitation of the chute 201, the expansion layer 52 moves obliquely upwards along the chute 201 while thermally expanding, a driving force is generated on the stress joint board 42, the stress joint board 42 drives the bar film 41 to circularly rotate along the photovoltaic panel body 1 and the narrow channel 202, so that the bar film 41 on the photovoltaic panel body 1 rotates obliquely downwards to the narrow channel 202, receive the two-sided cleanness of clean cotton 3, and the clear excellent membrane 41 of going up to the photovoltaic board body 1 upside in the lane 202 that inclines plays the effect of covering, dust and sand prevention to photovoltaic board body 1, and the excellent membrane 41 after the cleanness has just recovered certain cleanliness factor, is difficult for causing great hindrance to the energy conversion of photovoltaic board body 1.

Supplementary explanation: although the EVA film sleeve 4 is suitable for the areas with much sand and dust, the coverage of the EVA film sleeve 4 has small influence on the photovoltaic panel body 1 receiving illumination, but in the areas with much sand and dust, a large amount of sand and dust is accumulated on the photovoltaic panel body 1, the photovoltaic panel body 1 can be seriously influenced to receive the sunlight illumination, and the influence on the power generation of the photovoltaic panel body 1 is huge, so that compared with the beneficial effect generated by the arrangement of the EVA film sleeve 4, the EVA film sleeve can neglect the tiny obstruction of the photovoltaic panel body 1 receiving illumination, and therefore, the invention has great practicability.

According to the invention, the EVA film sleeve 4 with high light transmittance is covered on the outer side of the photovoltaic panel body 1, the EVA film sleeve 4 is introduced between the pair of cleaning cotton 3, the photovoltaic panel body 1 is effectively separated from sand dust through the EVA film sleeve 4, an adhesion carrier is provided for the sand dust, the sand dust is not easy to pollute the surface of the photovoltaic panel body 1, meanwhile, the expansion column 5 absorbs light to perform a thermal expansion-self-moving process, the EVA film sleeve 4 is pushed to rotate to perform up-down position replacement, the EVA film sleeve 4 which is covered on the upper side of the photovoltaic panel body 1 and is polluted by dust is automatically replaced and synchronously cleaned, when the sunlight irradiation is lost, the expansion column 5 moves back to an initial position after cooling shrinkage, the illumination heating is performed again to cause position exchange and cleaning of the EVA film sleeve 4, and the sand dust-proof and automatically-cleanable solar photovoltaic panel is provided for a sand-dust-rich area.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.